diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s')
-rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s | 204 |
1 files changed, 102 insertions, 102 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s index acb60c3..2afc146 100644 --- a/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s +++ b/media/libstagefright/codecs/amrwbenc/src/asm/ARMV7/Deemph_32_neon.s @@ -1,102 +1,102 @@ -@/*
-@ ** Copyright 2003-2010, VisualOn, Inc.
-@ **
-@ ** Licensed under the Apache License, Version 2.0 (the "License");
-@ ** you may not use this file except in compliance with the License.
-@ ** You may obtain a copy of the License at
-@ **
-@ ** http://www.apache.org/licenses/LICENSE-2.0
-@ **
-@ ** Unless required by applicable law or agreed to in writing, software
-@ ** distributed under the License is distributed on an "AS IS" BASIS,
-@ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@ ** See the License for the specific language governing permissions and
-@ ** limitations under the License.
-@ */
-@
-@void Deemph_32(
-@ Word16 x_hi[], /* (i) : input signal (bit31..16) */
-@ Word16 x_lo[], /* (i) : input signal (bit15..4) */
-@ Word16 y[], /* (o) : output signal (x16) */
-@ Word16 mu, /* (i) Q15 : deemphasis factor */
-@ Word16 L, /* (i) : vector size */
-@ Word16 * mem /* (i/o) : memory (y[-1]) */
-@ )
-
-@x_hi RN R0
-@x_lo RN R1
-@y[] RN R2
-@*mem RN R3
-
- .section .text
- .global Deemph_32_asm
-
-Deemph_32_asm:
-
- STMFD r13!, {r4 - r12, r14}
- MOV r4, #2 @i=0
- LDRSH r6, [r0], #2 @load x_hi[0]
- LDRSH r7, [r1], #2 @load x_lo[0]
- LDR r5, =22282 @r5---mu
- MOV r11, #0x8000
-
- @y[0]
- MOV r10, r6, LSL #16 @L_tmp = x_hi[0]<<16
- MOV r8, r5, ASR #1 @fac = mu >> 1
- LDR r5, [r3]
- ADD r12, r10, r7, LSL #4 @L_tmp += x_lo[0] << 4
- MOV r10, r12, LSL #3 @L_tmp <<= 3
- MUL r9, r5, r8
- LDRSH r6, [r0], #2 @load x_hi[1]
- QDADD r10, r10, r9
- LDRSH r7, [r1], #2 @load x_lo[1]
- MOV r12, r10, LSL #1 @L_tmp = L_mac(L_tmp, *mem, fac)
- QADD r10, r12, r11
- MOV r14, r10, ASR #16 @y[0] = round(L_tmp)
-
-
- MOV r10, r6, LSL #16
- ADD r12, r10, r7, LSL #4
- STRH r14, [r2], #2 @update y[0]
- MOV r10, r12, LSL #3
- MUL r9, r14, r8
- QDADD r10, r10, r9
- MOV r12, r10, LSL #1
- QADD r10, r12, r11
- MOV r14, r10, ASR #16 @y[1] = round(L_tmp)
-
-LOOP:
- LDRSH r6, [r0], #2 @load x_hi[]
- LDRSH r7, [r1], #2
- STRH r14, [r2], #2
- MOV r10, r6, LSL #16
- ADD r12, r10, r7, LSL #4
- MUL r9, r14, r8
- MOV r10, r12, LSL #3
- QDADD r10, r10, r9
- LDRSH r6, [r0], #2 @load x_hi[]
- MOV r12, r10, LSL #1
- QADD r10, r12, r11
- LDRSH r7, [r1], #2
- MOV r14, r10, ASR #16
-
- MOV r10, r6, LSL #16
- ADD r12, r10, r7, LSL #4
- STRH r14, [r2], #2
- MUL r9, r14, r8
- MOV r10, r12, LSL #3
- QDADD r10, r10, r9
- ADD r4, r4, #2
- MOV r12, r10, LSL #1
- QADD r10, r12, r11
- CMP r4, #64
- MOV r14, r10, ASR #16
-
- BLT LOOP
- STR r14, [r3]
- STRH r14, [r2]
-
- LDMFD r13!, {r4 - r12, r15}
-
- .END
-
+@/* +@ ** Copyright 2003-2010, VisualOn, Inc. +@ ** +@ ** Licensed under the Apache License, Version 2.0 (the "License"); +@ ** you may not use this file except in compliance with the License. +@ ** You may obtain a copy of the License at +@ ** +@ ** http://www.apache.org/licenses/LICENSE-2.0 +@ ** +@ ** Unless required by applicable law or agreed to in writing, software +@ ** distributed under the License is distributed on an "AS IS" BASIS, +@ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@ ** See the License for the specific language governing permissions and +@ ** limitations under the License. +@ */ +@ +@void Deemph_32( +@ Word16 x_hi[], /* (i) : input signal (bit31..16) */ +@ Word16 x_lo[], /* (i) : input signal (bit15..4) */ +@ Word16 y[], /* (o) : output signal (x16) */ +@ Word16 mu, /* (i) Q15 : deemphasis factor */ +@ Word16 L, /* (i) : vector size */ +@ Word16 * mem /* (i/o) : memory (y[-1]) */ +@ ) + +@x_hi RN R0 +@x_lo RN R1 +@y[] RN R2 +@*mem RN R3 + + .section .text + .global Deemph_32_asm + +Deemph_32_asm: + + STMFD r13!, {r4 - r12, r14} + MOV r4, #2 @i=0 + LDRSH r6, [r0], #2 @load x_hi[0] + LDRSH r7, [r1], #2 @load x_lo[0] + LDR r5, =22282 @r5---mu + MOV r11, #0x8000 + + @y[0] + MOV r10, r6, LSL #16 @L_tmp = x_hi[0]<<16 + MOV r8, r5, ASR #1 @fac = mu >> 1 + LDR r5, [r3] + ADD r12, r10, r7, LSL #4 @L_tmp += x_lo[0] << 4 + MOV r10, r12, LSL #3 @L_tmp <<= 3 + MUL r9, r5, r8 + LDRSH r6, [r0], #2 @load x_hi[1] + QDADD r10, r10, r9 + LDRSH r7, [r1], #2 @load x_lo[1] + MOV r12, r10, LSL #1 @L_tmp = L_mac(L_tmp, *mem, fac) + QADD r10, r12, r11 + MOV r14, r10, ASR #16 @y[0] = round(L_tmp) + + + MOV r10, r6, LSL #16 + ADD r12, r10, r7, LSL #4 + STRH r14, [r2], #2 @update y[0] + MOV r10, r12, LSL #3 + MUL r9, r14, r8 + QDADD r10, r10, r9 + MOV r12, r10, LSL #1 + QADD r10, r12, r11 + MOV r14, r10, ASR #16 @y[1] = round(L_tmp) + +LOOP: + LDRSH r6, [r0], #2 @load x_hi[] + LDRSH r7, [r1], #2 + STRH r14, [r2], #2 + MOV r10, r6, LSL #16 + ADD r12, r10, r7, LSL #4 + MUL r9, r14, r8 + MOV r10, r12, LSL #3 + QDADD r10, r10, r9 + LDRSH r6, [r0], #2 @load x_hi[] + MOV r12, r10, LSL #1 + QADD r10, r12, r11 + LDRSH r7, [r1], #2 + MOV r14, r10, ASR #16 + + MOV r10, r6, LSL #16 + ADD r12, r10, r7, LSL #4 + STRH r14, [r2], #2 + MUL r9, r14, r8 + MOV r10, r12, LSL #3 + QDADD r10, r10, r9 + ADD r4, r4, #2 + MOV r12, r10, LSL #1 + QADD r10, r12, r11 + CMP r4, #64 + MOV r14, r10, ASR #16 + + BLT LOOP + STR r14, [r3] + STRH r14, [r2] + + LDMFD r13!, {r4 - r12, r15} + + .END + |